Downloaded the latest ubuntu image. Created the container and runs fine. My issue is that I can not change the default IP
root@69e681879d62:/# ifconfig eth0 172.16.12.140 netmask 255.255.255.0
SIOCSIFADDR: Operation not permitted
SIOCSIFFLAGS: Operation not permitted
SIOCSIFNETMASK: Operation not permitted
Even if I run ifconfig eth0 down I get
SIOCSIFFLAGS: Operation not permitted
Need to change to static so I can configure the container with a domain controller with samba.
Any help is greatly appreciated